2011001002009 has 16 divisors (see below), whose sum is σ = 2059493451840. Its totient is φ = 1962587874240.

The previous prime is 2011001001983. The next prime is 2011001002027. The reversal of 2011001002009 is 9002001001102.

It is a cyclic number.

It is not a de Polignac number, because 2011001002009 - 2¹³ = 2011000993817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011001001983 and 2011001002001.

It is not an unprimeable number, because it can be changed into a prime (2011001002069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491565054 + ... + 491569144.

It is an arithmetic number, because the mean of its divisors is an integer number (128718340740).

Almost surely, 2^{2011001002009} is an apocalyptic number.

It is an amenable number.

2011001002009 is a deficient number, since it is larger than the sum of its proper divisors (48492449831).

2011001002009 is a wasteful number, since it uses less digits than its factorization.

2011001002009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10920.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 2011001002009 in words is "two trillion, eleven billion, one million, two thousand, nine".